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911st 911st is offline
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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269
Might check the turbo. When damaged they can get slow but will usually whistle. Exhaust restriction is a possibility. If you are still running the cat, it might be clogged.

If the inlet overrun valve is not working correctly is can slow boost response between shifts but should not effect first gear much.

The muffler is the best place to look for an increase in boost response over a stock car. The K27-7200 comes in faster and is more efficient on boost. Those two mods alone can get you to .8 bar by 3000 or soon after.

There is also solid gains to be made on the ignition side.

(Esoteric opportunities to increase response: If it is a double connection Pot on the dist, it can modified to increase total amount of boost and vac retard. Then set timing at idle instead of at RPM. This will get more advance off idle and at cruse but keep on boost timing stock for better throttle response and MPG. -- Also, some tuners have moded the inlet overrun valve to stay open at idle/cruse to spin up the turbo in reserve then close when accelerating for faster boost response. -- It is also possable to mod the WUR so the metering plate will move quicker with acceleration for less intake restriction. )

Not an expert, just my two cents.
Old 11-10-2009, 08:30 AM
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